Operating Principle Of The Electronic Diagnostic Output - schmersal RSS 36-D-ST5 Manual

The green LED indicates that the safety sensor is ready for operation. The supply voltage is on and all safety inputs
are present.
Flashing (1Hz) of the green LED signals that a voltage is missing on one or both of the safety inputs (X1 and/or X2).
The yellow LED always signals the presence of an actuator within range. If the actuator is operating in the limit area
of the sensor switching distance, it will be indicated by flashing.
The flashing can be used to prematurely detect variations in the clearance between the sensor and the actuator
(e.g. sagging of a safety guard). The sensor must be adjusted before the distance to the actuator increases and
before the safety outputs are disabled, thus stopping the machine. If an error is detected, the red LED will be
activated.
LED indication (red)
1 flash pulse
2 flash pulses
3 flash pulses
4 flash pulses
5 flash pulses
Continuous red

7.3 Operating principle of the electronic diagnostic output

A diagnostic output additionally indicates the switching condition of the safety switchgear. These signals can be
used in a downstream control.
Den kortslutningssäkra diagnosutgången OUT kan användas till olika signaländamål som t.ex. till PLC eller annan
central visualisering.
Diagnosutgången är inte till för säkerhet.
Fel
Fel som inte längre säkerställer den säkra funktionen hos säkerhetslåset (interna fel) medför att
säkerhetsutgångarna bryts under risktiden. När felet har åtgärdats, kvitteras felmeddelandet genom att tillhörande
skyddsdörr öppnas och stängs igen.
Error warning
A fault that does not immediately endanger the safety function of the safety switchgear (e.g. too high ambient
temperature, safety output at external potential, cross-circuit) leads to delayed shutdown. This signal combination,
diagnostic output disabled and safety channels still enabled, can be used to stop the production process in a
controlled manner.
An error warning is deleted when the cause of error is eliminated.
If the fault warning remains on for 30 minutes, the safety outputs are also switched off (red LED flashes).
17-22
Error cause
Error output Y1
Error output Y2
Cross-wire Y1/Y2
ambient temperature too high
Wrong or defective actuator
Internal fault, with yellow flashing teaching
procedure